US PATENT SUBCLASS 235 / 86
.~.~ Belt

Current as of: June, 1999
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235 /   HD   REGISTERS

61 R  DF  CALCULATORS {52}
85 R  DF  .~ Tabular {5}
86.~.~ Belt

DEFINITION

Classification: 235/86

(under subclass 85) Tabular calculators having the tables placed upon belts which are movable back and forth, as desired.